BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 50 37.3%
2 United States 34 25.4%
3 Germany 16 11.9%
4 Netherlands 16 11.9%
5 Canada 4 3%
6 Hong Kong 4 3%
7 Malaysia 4 3%
8 United Kingdom 3 2.2%
9 Australia 1 0.7%
10 Portugal 1 0.7%
11 Singapore 1 0.7%